The future brother-in-law of hip hop star DJ Khaled was shot to death in a Bronx apartment, the Daily News has learned.

Jonathan Tuck — the younger brother of Nicole Tuck, the "All I Do Is Win" artist's fiancée — was trying to buy marijuana when someone shot him in the face about 9:15 p.m. Sunday in a Belmont apartment less than a half mile from his home, cops said.

Tuck, 25, died at St. Barnabas Hospital.

The second-floor apartment on Washington Ave. near E. 185th St, remained roped off Monday night, as police continued their investigation into the shooting. Cops believe Tuck argued with his attacker before the shooting but it's not clear if that quarrel stemmed from the alleged pot deal.

"He's a good guy,” said pal Brandon Davis, 30, who's known Tuck for seven years. “He was in the wrong place at the wrong time. There was no reason for him to be there.”

Davis, who coaches football, said he first met Tuck in 2011 when Tuck played defensive end for the Bronx Colts. They had remained friends ever since.

The two were supposed to watch the Super Bowl together Sunday night, but Tuck never showed, Davis said. At 4 a.m. Monday, Tuck's girlfriend called with the tragic news.

"All I can think about is I'm sitting here celebrating football and my friend is across town dying," Davis said.

Tuck and his sister were close, Davis said, though he wouldn't comment on how Nicole Tuck or DJ Khaled were coping with the tragedy.

DJ Khaled was in Minneapolis for the Super Bowl when Tuck was killed, according to social media posts.

Police sources said Nicole Tuck and her mother rushed to the Bronx after learning of the shooting.